1. A flash distillation is suitable for separating components which a. boil at widely different temperatures b. boil at very close temperutures c. form maximum boiling azeotrope d. form minimum boiling azeotrope 2. Distillation is not suitable for separating mixtures of components which a. boil at widely different temperatures b. boil at very close temperatures c. form minimum boiling azeotrope d. none of the above 3. When a total condenser is used to convert the vapor from the top of the column into saturated liquid which of following statement(s) is correct a. The composition of the distillate equals that of the vapor b. The heat duty of the condenser will depend on the state of the vapor c. The composition of the distillate will differ from that of the vapor d. The composition of the returned liquid to the column equals that of the vapor 4. when a saturated vapor feed is used, the flow rate of liquid in the rectifying section is a. lower than the vapor rate on the stripping section b. higher than the vapor rate on the stripping section c. equals the flow rate of liquid on the stripping section d. twice the flow rate of vapor on the stripping